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* Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6Linus Torvalds2010-11-0827-43/+47
|\ | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6: TTY: move .gitignore from drivers/char/ to drivers/tty/vt/ TTY: create drivers/tty/vt and move the vt code there TTY: create drivers/tty and move the tty core files there
| * TTY: move .gitignore from drivers/char/ to drivers/tty/vt/Greg Kroah-Hartman2010-11-051-0/+0
| | | | | | | | | | | | | | | | | | | | | | The autogenerated files (consolemap_deftbl.c and defkeymap.c) need to be ignored by git, so move the .gitignore file that was doing it to the properly location now that the files have moved as well. Cc: Arnd Bergmann <arnd@arndb.de> Cc: Jiri Slaby <jslaby@suse.cz> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * TTY: create drivers/tty/vt and move the vt code thereGreg Kroah-Hartman2010-11-0512-33/+36
| | | | | | | | | | | | | | | | | | The vt and other related code is moved into the drivers/tty/vt directory. Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: Jiri Slaby <jslaby@suse.cz> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * TTY: create drivers/tty and move the tty core files thereGreg Kroah-Hartman2010-11-0516-10/+11
| | | | | | | | | | | | | | | | | | | | | | | | The tty code should be in its own subdirectory and not in the char driver with all of the cruft that is currently there. Based on work done by Arnd Bergmann <arnd@arndb.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: Jiri Slaby <jslaby@suse.cz> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | Merge branch 'staging-linus' of ↵Linus Torvalds2010-11-085-4/+4
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-next-2.6 * 'staging-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-next-2.6: Staging: ath6kl: remove empty files that mess with 'distclean' staging: ath6kl: Fixing the driver to use modified mmc_host structure Staging: solo6x10: fix build problem
| * | Staging: ath6kl: remove empty files that mess with 'distclean'Greg Kroah-Hartman2010-11-062-0/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These two .h files would get removed from the tree when doing make distclean It turns out they are not needed at all, so just delete them which fixes people's git trees when doing development. Reported-by: Andi Kleen <andi@firstfloor.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | staging: ath6kl: Fixing the driver to use modified mmc_host structureVipin Mehta2010-11-031-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A recent change in the mmc_host structure removed the distinction between hw and phys segments (58cb50c20fde6059f3f8db4466a1bd4d1fff999c) Changing the driver to use the modified structure. Reported-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Vipin Mehta <vmehta@atheros.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | Staging: solo6x10: fix build problemGreg Kroah-Hartman2010-11-022-2/+2
| |/ | | | | | | | | | | | | | | | | With commit 08bff03ed697a583612b62a6ac566bd5bce98012 (V4L/DVB: videobuf: add ext_lock argument to the queue init functions) videobuf_queue_sg_init() changed to need another paramater. This patch fixes that issue. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | Merge branch 'rmobile-fixes-for-linus' of ↵Linus Torvalds2010-11-0810-34/+171
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 * 'rmobile-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: mmc: sh_mmcif: Convert extern inline to static inline. ARM: mach-shmobile: Allow GPIO chips to register IRQ mappings. ARM: mach-shmobile: fix sh7372 after a recent clock framework rework ARM: mach-shmobile: include drivers/sh/Kconfig ARM: mach-shmobile: ap4evb: Add HDMI sound support ARM: mach-shmobile: clock-sh7372: Add FSIDIV clock support ARM: shmobile: remove sh_timer_config clk member
| * \ Merge branch 'rmobile/core' into rmobile-fixes-for-linusPaul Mundt2010-11-0810-34/+171
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| | * | mmc: sh_mmcif: Convert extern inline to static inline.Paul Mundt2010-11-041-9/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Presently the extern inline case results in a compiler warning on ARM due to the memory barrier definition used in the I/O routines. These ultimately all want to be static inline anyways, so just convert them all in place. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | ARM: mach-shmobile: Allow GPIO chips to register IRQ mappings.Paul Mundt2010-11-041-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | As non-PFC chips are added that may support IRQs, pass through to the generic helper. This follows the the SH change. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | ARM: mach-shmobile: fix sh7372 after a recent clock framework reworkGuennadi Liakhovetski2010-11-021-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The updated sh clock framework has introduced a .nr_freqs element of struct clk, which has to be initialised with the number of possible frequencies. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | ARM: mach-shmobile: include drivers/sh/KconfigPaul Mundt2010-11-011-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Many of the config bit are presently duplicated between the platforms, which will gradually cleaned up through centralization. For the moment we expose some new INTC features through drivers/sh/Kconfig that the ARM platforms presently don't enable, so make it generally available. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | ARM: mach-shmobile: ap4evb: Add HDMI sound supportKuninori Morimoto2010-10-311-1/+45
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | ARM: mach-shmobile: clock-sh7372: Add FSIDIV clock supportKuninori Morimoto2010-10-312-0/+103
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | ARM: shmobile: remove sh_timer_config clk memberMagnus Damm2010-10-314-22/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now when the SH-Mobile ARM platforms have been converted to use device name it is possible to remove "clk" from struct sh_timer_config. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | | | Merge branch 'sh-fixes-for-linus' of ↵Linus Torvalds2010-11-0849-1482/+259
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 * 'sh-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: sh: clkfwk: Fix up checkpatch warnings. sh: make some needlessly global sh7724 clocks static sh: add clk_round_parent() to optimize parent clock rate sh: Simplify phys_addr_mask()/PTE_PHYS_MASK for 29/32-bit. sh: nommu: Support building without an uncached mapping. sh: nommu: use 32-bit phys mode. sh: mach-se: Fix up SE7206 no ioport build. sh: intc: Update for single IRQ reservation helper. sh: clkfwk: Fix up rate rounding error handling. sh: mach-se: Rip out superfluous 7751 PIO routines. sh: mach-se: Rip out superfluous 770x PIO routines. sh: mach-edosk7705: Kill off machtype, consolidate board def. sh: mach-edosk7705: update for this century, kill off PIO trapping. sh: mach-se: Rip out superfluous 7206 PIO routines. sh: mach-systemh: Kill off dead board. sh: mach-snapgear: Kill off machtype, consolidate board def. sh: mach-snapgear: Rip out superfluous PIO routines. sh: mach-microdev: SuperIO-relative ioport mapping.
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| *-------. \ \ \ Merge branches 'sh/pio-death', 'sh/nommu', 'sh/clkfwk', 'sh/core' and ↵Paul Mundt2010-11-0849-1482/+259
| |\ \ \ \ \ \ \ \ | | |_|_|_|_|/ / / | |/| | | | | | | | | | | | | | | | 'sh/intc-extension' into sh-fixes-for-linus
| | | | | | * | | sh: intc: Update for single IRQ reservation helper.Paul Mundt2010-11-012-2/+2
| | | | | | | |/ | | | | | | |/| | | | | | | | | | | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | | | | * | | sh: Simplify phys_addr_mask()/PTE_PHYS_MASK for 29/32-bit.Paul Mundt2010-11-041-12/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Given that __in_29bit_mode() is a constant for the non-PMB case, we can simply use the PMB-facing version of phys_addr_mask() and drop the other variants. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | | | * | | | sh: clkfwk: Fix up checkpatch warnings.Paul Mundt2010-11-081-5/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The clk_round_parent() change introduced various checkpatch warnings, tidy them up. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | | | * | | | sh: make some needlessly global sh7724 clocks staticGuennadi Liakhovetski2010-11-081-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These clocks are currently only used inside one .c file and are not declared in any headers, therefore having them global is useless. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | | | * | | | sh: add clk_round_parent() to optimize parent clock rateGuennadi Liakhovetski2010-11-082-0/+79
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Sometimes it is possible and reasonable to adjust the parent clock rate to improve precision of the child clock, e.g., if the child clock has no siblings. clk_round_parent() is a new addition to the SH clock-framework API, that implements such an optimization for child clocks with divisors, taking all integer values in a range. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | | | * | | | sh: clkfwk: Fix up rate rounding error handling.Paul Mundt2010-11-011-2/+2
| | | | | |_|/ | | | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | According to the linux/clk.h definition we should be handing back an errno value or a valid rate. This fixes up the case where 0 can be returned for invalid frequencies or cases where rounding has no selectable candidate. Reported-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | | * | | | sh: nommu: Support building without an uncached mapping.Paul Mundt2010-11-044-42/+41
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that nommu selects 32BIT we run in to the situation where SH-2A supports an uncached identity mapping by way of the BSC, while the SH-2 does not. This provides stubs for the PC manglers and tidies up some of the system*.h mess in the process. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | | * | | | sh: nommu: use 32-bit phys mode.Paul Mundt2010-11-045-14/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The nommu code has regressed somewhat in that 29BIT gets set for the SH-2/2A configs regardless of the fact that they are really 32BIT sans MMU or PMB. This does a bit of tidying to get nommu properly selecting 32BIT as it was before. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | | * | | | sh: mach-se: Fix up SE7206 no ioport build.Paul Mundt2010-11-041-1/+3
| | | | |/ / | | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There was a leftover inw() used here that really just wants to be a __raw_readw() instead. Convert it over. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | sh: mach-se: Rip out superfluous 7751 PIO routines.Paul Mundt2010-10-293-138/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | MRSHPC is wholly unused here, no need to trap it specially. If support is added in the future it can be taken care of via platform data like on the others. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | sh: mach-se: Rip out superfluous 770x PIO routines.Paul Mundt2010-10-293-179/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Platform data takes care of all of these these days, kill them off. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | sh: mach-edosk7705: Kill off machtype, consolidate board def.Paul Mundt2010-10-295-14/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Trivial shuffling and tidying. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | sh: mach-edosk7705: update for this century, kill off PIO trapping.Paul Mundt2010-10-293-82/+54
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The only reason this board needs to do PIO trapping is for ethernet, which happens to follow the same scheme as its bigger brother the edosk7760. With ethernet properly supported through the platform device, we can kill off the left over PIO abortion. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | sh: mach-se: Rip out superfluous 7206 PIO routines.Paul Mundt2010-10-293-120/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The PIO trapping was only for MRSHPC and the SMC ethernet. Given that the SMC ethernet is already properly handled and that nothing is using the MRSHPC, none of this is needed. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | sh: mach-systemh: Kill off dead board.Paul Mundt2010-10-299-397/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This code has been untouched since it was merged many years ago, and has severely bitrotted since, suggesting that the board has no real users left. Notice of intent to remove has been sent out over the last few years, with no takers. Kill it off. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | sh: mach-snapgear: Kill off machtype, consolidate board def.Paul Mundt2010-10-297-8/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Only the secureedge5410 was ever supported by this code, so make the board specification explicit rather than perpetuating a mach group. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | sh: mach-snapgear: Rip out superfluous PIO routines.Paul Mundt2010-10-294-170/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | None of these PIO routines do anything other than basic error checking, get rid of them and use the generic fallbacks. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| | * | | | sh: mach-microdev: SuperIO-relative ioport mapping.Paul Mundt2010-10-293-275/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The microdev only has to contend with silly PIO mangling on anything within the SuperIO range. As each of the SuperIO modules is already speciail cased, we just shift that logic over to the ioport map. With microdev PCI never being merged (and being fudamentally broken in hardware), and the ethernet chip only doing 16-bit accesses already, there's no need to maintain any of the extra special casing. Kill it all off. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | | | | | floppy: fix another use-after-freeVivek Goyal2010-11-061-1/+1
|/ / / / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | While scanning the floopy code due to c093ee4f07f4 ("floppy: fix use-after-free in module load failure path"), I found one more instance of trying to access disk->queue pointer after doing put_disk() on gendisk. For some reason , floppy moule still loads/unloads fine. The object is probably still around with right pointer values. o There seems to be one more instance of trying to cleanup the request queue after we have called put_disk() on associated gendisk. o This fix is more out of code inspection. Even without this fix for some reason I am able to load/unload floppy module without any issues. o Floppy module loads/unloads fine after the fix. Signed-off-by: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | ipw2x00: remove the right /proc/net entryLinus Torvalds2010-11-051-4/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 27ae60f8f7aa ("ipw2x00: replace "ieee80211" with "libipw" where appropriate") changed DRV_NAME to be "libipw", but didn't properly fix up the places where it was used to specify the name for the /proc/net/ directory. For backwards compatibility reasons, that directory name remained "ieee80211", but due to the DRV_NAME change, the error case printouts and the cleanup functions now used "libipw" instead. Which made it all fail badly. For example, on module unload as reported by Randy: WARNING: at fs/proc/generic.c:816 remove_proc_entry+0x156/0x35e() name 'libipw' because it's trying to unregister a /proc directory that obviously doesn't even exist. Clean it all up to use DRV_PROCNAME for the actual /proc directory name. Reported-and-tested-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Pavel Roskin <proski@gnu.org> Cc: John W. Linville <linville@tuxdriver.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | Merge branch 'kvm-updates/2.6.37' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds2010-11-057-13/+21
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'kvm-updates/2.6.37' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: PPC: BookE: Load the lower half of MSR KVM: PPC: BookE: fix sleep with interrupts disabled KVM: PPC: e500: Call kvm_vcpu_uninit() before kvmppc_e500_tlb_uninit(). PPC: KVM: Book E doesn't have __end_interrupts. KVM: x86: Issue smp_call_function_many with preemption disabled KVM: x86: fix information leak to userland KVM: PPC: fix information leak to userland KVM: MMU: fix rmap_remove on non present sptes KVM: Write protect memory after slot swap
| * | | | | KVM: PPC: BookE: Load the lower half of MSRScott Wood2010-11-051-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This was preventing the guest from setting any bits in the hardware MSR which aren't forced on, such as MSR[SPE]. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
| * | | | | KVM: PPC: BookE: fix sleep with interrupts disabledScott Wood2010-11-051-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is not legal to call mutex_lock() with interrupts disabled. This will assert with debug checks enabled. If there's a real need to disable interrupts here, it could be done after the mutex is acquired -- but I don't see why it's needed at all. Signed-off-by: Scott Wood <scottwood@freescale.com> Reviewed-by: Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com> Signed-off-by: Alexander Graf <agraf@suse.de>
| * | | | | KVM: PPC: e500: Call kvm_vcpu_uninit() before kvmppc_e500_tlb_uninit().Scott Wood2010-11-051-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The VCPU uninit calls some TLB functions, and the TLB uninit function frees the memory used by them. Signed-off-by: Scott Wood <scottwood@freescale.com> Acked-by: Liu Yu <yu.liu@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
| * | | | | PPC: KVM: Book E doesn't have __end_interrupts.Scott Wood2010-11-051-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix an unresolved symbol with CONFIG_KVM_GUEST plus CONFIG_RELOCATABLE on Book E. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
| * | | | | KVM: x86: Issue smp_call_function_many with preemption disabledJan Kiszka2010-11-051-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | smp_call_function_many is specified to be called only with preemption disabled. Fulfill this requirement. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * | | | | KVM: x86: fix information leak to userlandVasiliy Kulikov2010-11-051-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Structures kvm_vcpu_events, kvm_debugregs, kvm_pit_state2 and kvm_clock_data are copied to userland with some padding and reserved fields unitialized. It leads to leaking of contents of kernel stack memory. We have to initialize them to zero. In patch v1 Jan Kiszka suggested to fill reserved fields with zeros instead of memset'ting the whole struct. It makes sense as these fields are explicitly marked as padding. No more fields need zeroing. KVM-Stable-Tag. Signed-off-by: Vasiliy Kulikov <segooon@gmail.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * | | | | KVM: PPC: fix information leak to userlandVasiliy Kulikov2010-11-051-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Structure kvm_ppc_pvinfo is copied to userland with flags and pad fields unitialized. It leads to leaking of contents of kernel stack memory. Signed-off-by: Vasiliy Kulikov <segooon@gmail.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * | | | | KVM: MMU: fix rmap_remove on non present sptesMarcelo Tosatti2010-11-051-4/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | drop_spte should not attempt to rmap_remove a non present shadow pte. This fixes a BUG_ON seen on kvm-autotest. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Reported-by: Lucas Meneghel Rodrigues <lmr@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | | | KVM: Write protect memory after slot swapMichael S. Tsirkin2010-11-051-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I have observed the following bug trigger: 1. userspace calls GET_DIRTY_LOG 2. kvm_mmu_slot_remove_write_access is called and makes a page ro 3. page fault happens and makes the page writeable fault is logged in the bitmap appropriately 4. kvm_vm_ioctl_get_dirty_log swaps slot pointers a lot of time passes 5. guest writes into the page 6. userspace calls GET_DIRTY_LOG At point (5), bitmap is clean and page is writeable, thus, guest modification of memory is not logged and GET_DIRTY_LOG returns an empty bitmap. The rule is that all pages are either dirty in the current bitmap, or write-protected, which is violated here. It seems that just moving kvm_mmu_slot_remove_write_access down to after the slot pointer swap should fix this bug. KVM-Stable-Tag. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
* | | | | | floppy: fix use-after-free in module load failure pathLinus Torvalds2010-11-051-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 488211844e0c ("floppy: switch to one queue per drive instead of sharing a queue") introduced a use-after-free. We do "put_disk()" on the disk device _before_ we then clean up the queue associated with that disk. Move the put_disk() down to avoid dereferencing a free'd data structure. Cc: Jens Axboe <jaxboe@fusionio.com> Cc: Vivek Goyal <vgoyal@redhat.com> Reported-and-tested-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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